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-rw-r--r--unmarshal.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/unmarshal.c b/unmarshal.c
index 6bbfaa0..909bdc2 100644
--- a/unmarshal.c
+++ b/unmarshal.c
@@ -74,12 +74,12 @@ libsha2_unmarshal(struct libsha2_state *restrict state, const char *restrict buf
state->chunk_size = *(const size_t *)&buf[off];
off += sizeof(size_t);
- if (bufsize - off < state->message_size % state->chunk_size) {
+ if (bufsize - off < (state->message_size / 8) % state->chunk_size) {
errno = EINVAL;
return 0;
}
- memcpy(state->chunk, &buf[off], state->message_size % state->chunk_size);
- off += state->message_size % state->chunk_size;
+ memcpy(state->chunk, &buf[off], (state->message_size / 8) % state->chunk_size);
+ off += (state->message_size / 8) % state->chunk_size;
return off;
}